Ten competitors in a music test were ranked by three judges in the following order
competitor 1 2 3 4 5 6 7 8 9 10
Rank by judge A 1 6 5 10 3 2 4 9 7 8
Rank by judge B 3 5 8 4 7 10 2 1 6 9
Rank by judge C 6 4 9 8 1 2 3 10 5 7